Product Details
Swift Springs Standard Conventional Front Springs in 5.5" OD and 9.5" length are purpose-built front position race springs for competitive oval track and stock car racing using the larger 5.5" outside diameter. These Swift front race springs are manufactured in Japan from proprietary H5S.TW high-tensile alloy steel, delivering the rate consistency and fatigue resistance that front suspension positions demand under heavy braking and high-speed corner entry loads.
Swift Springs has over 90 years of precision spring manufacturing experience. These 5.5" OD front springs provide measurably better traction, weight transfer, and tire temperature consistency than standard springs. All Swift Springs use H5S.TW alloy for superior performance.
Why Racers Choose Swift Springs Conventional Springs
- H5S.TW alloy steel provides superior fatigue life and rate consistency
- Designed for front suspension positions under heavy loads
- Fewer coils reduce unsprung weight for improved mechanical grip
- Faster transient response for better traction on rough track surfaces
- Lower tire temperatures through improved weight transfer
- Swift Springs are made in Japan with precision grinding for even perch seating
Note: Swift Conventional Race Springs are sold individually. Select your desired spring rate from the options above.
Specifications
| PART # | SPRING RATE | USABLE STROKE | MAX STROKE | MAX LOAD |
| lbs/inch | inch | inch | lbs | |
| 950-550-400F | 400 | 6.1 | 2,614 | |
| 950-550-450F | 450 | 5.8 | 2,906 | |
| 950-550-500F | 500 | 5.6 | 3,209 | |
| 950-550-550F | 550 | 5.5 | 3,443 | |
| 950-550-600F | 600 | 5.5 | 3,661 |